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ATTINY817-MFR. Datasheet(PDF) 67 Page - Microchip Technology |
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ATTINY817-MFR. Datasheet(HTML) 67 Page - Microchip Technology |
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67 / 492 page  Bit 5 – OSC32KS: OSCULP32K Status The status bit will only be available if the source is requested as the main clock or by another module. If the oscillators RUNSTDBY bit is set but the oscillator is unused/not requested this bit will be 0. Value Description 0 OSCULP32K is not stable 1 OSCULP32K is stable Bit 4 – OSC20MS: OSC20M Status The status bit will only be available if the source is requested as the main clock or by another module. If the oscillators RUNSTDBY bit is set but the oscillator is unused/not requested this bit will be 0. Value Description 0 OSC20M is not stable 1 OSC20M is stable Bit 0 – SOSC: Main Clock Oscillator Changing Value Description 0 The clock source for CLK_MAIN is not undergoing a switch. 1 The clock source for CLK_MAIN is undergoing a switch, and will change as soon as the new source is stable. 10.5.5 16/20MHz Oscillator Control A Name: OSC20MCTRLA Offset: 0x10 Reset: 0x00 Property: Configuration Change Protection Bit 7 6 5 4 3 2 1 0 RUNSTDBY Access R R R R R R R/W R Reset 0 0 0 0 0 0 0 0 Bit 1 – RUNSTDBY: Run Standby This bit force the oscillator on in all modes, even when unused by the system. In standby sleep mode this can be used to ensure immediate wake-up and not waiting for oscillator start-up time. When not requested by peripherals, no oscillator output is provided. It takes 4 oscillator cycles to open the clock gate after a request but the oscillator analog start-up time will be removed when this bit is set. 10.5.6 16/20MHz Oscillator Calibration A Name: OSC20MCALIBA Offset: 0x11 Reset: Based on FREQSEL in FUSE.OSCCFG Property: Configuration Change Protection ATtiny417/817 © 2017 Microchip Technology Inc. Datasheet Complete DS40001901B-page 67 |
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